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  1. using System;
  2. using System.Linq;
  3. using System.Collections.Generic;
  4. using System.Text.RegularExpressions;
  5.  
  6. public class Test
  7. {
  8. 	private static readonly Dictionary<string, string> Pieces = new Dictionary<string, string>
  9. 	{
  10. 		{ "month", @"(JAN|FEB|MAR|APR|MAY|JUN|JUL|AUG|SEP|OCT|NOV|DEC)" },
  11. 		{ "day", @"\d+" },
  12. 		{ "hour", @"\d+" },
  13. 		{ "the_rest", @".*" },
  14. 	};
  15.  
  16. 	public static void Main()
  17. 	{
  18. 		var str = "JAN 01 00:00:01 <Admin> Action, May have spaces etc.";
  19. 		var format = "{month} {day} {hour}:{the_rest}";
  20.  
  21.                 var results = Parse(str, format);
  22.                 if (results == null) {
  23. 			Console.WriteLine("Regex did not match");
  24. 			return;
  25. 		}
  26.  
  27. 		foreach(var name in Pieces.Keys) {
  28. 			Console.WriteLine(string.Format("{0} = {1}", name, results[name]));
  29. 		}
  30. 	}
  31.  
  32. 	public static IDictionary<string, string> Parse(string input, string format)
  33. 	{
  34. 		var re = Regex.Replace(format,
  35. 	        	               @"\{(\w+)\}",
  36. 	                	       m => string.Format("(?<{0}>{1})", m.Groups[1].Value, Pieces[m.Groups[1].Value]));
  37. 		var regex = new Regex("^" + re + "$", RegexOptions.ExplicitCapture);
  38. 		var match = regex.Match(input);
  39.                 return match.Success
  40. 			? regex.GetGroupNames().ToDictionary(n => n, n => match.Groups[n].Value)
  41. 			: null;
  42. 	}
  43. }
Success #stdin #stdout 0.09s 37496KB
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Standard input is empty
stdout
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month = JAN
day = 01
hour = 00
the_rest = 00:01 <Admin> Action, May have spaces etc.
https://ideone.com/RlXCq
language:
C# (gmcs 5.20.1)
created:
11 years ago
visibility:
public

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